PALO ALTO, Calif.--(BUSINESS WIRE)--CardioDx, Inc., a pioneer in the field of cardiovascular genomic diagnostics, today announced that Palmetto GBA, a national contractor that administers Medicare benefits, has established coverage for the company’s Corus® CAD gene expression test for the evaluation of patients presenting with typical and atypical symptoms suggestive of coronary artery disease. With this decision, the Corus CAD gene expression test is now a covered benefit for more than 40 million Medicare enrollees in the U.S.